var china = [
    //直辖市
    ['北京市'],
    ['上海市'],
    ['天津市'],
    ['重庆市'],
    //华北地区
    ['河北省', '石家庄', '唐山', '秦皇岛', '邯郸', '邢台', '保定', '张家口', '承德', '沧州', '廊坊', '衡水'],
    ['山西省', '太原', '大同', '阳泉', '长治', '晋城', '朔州', '晋中', '运城', '忻州', '临汾', '吕梁'],
    ['内蒙古自治区', '呼和浩特', '包头', '乌海', '赤峰', '通辽', '鄂尔多斯', '呼伦贝尔', '巴彦淖尔', '乌兰察布', '兴安', '锡林郭勒', '阿拉善'],
    //东北地区
    ['辽宁省', '沈阳', '大连', '鞍山', '抚顺', '本溪', '丹东', '锦州', '营口', '阜新', '辽阳', '盘锦', '铁岭', '朝阳', '葫芦岛'],
    ['吉林省', '长春', '吉林', '四平', '辽源', '通化', '白山', '松原', '白城', '延边'],
    ['黑龙江', '哈尔滨', '齐齐哈尔', '鸡西', '鹤岗', '双鸭山', '大庆', '伊春', '佳木斯', '七台河', '牡丹江', '黑河', '绥化', '大兴安岭'],
    //华东地区
    ['江苏省', '南京', '无锡', '徐州', '常州', '苏州', '南通', '连云港', '淮安', '盐城', '扬州', '镇江', '泰州', '宿迁'],
    ['浙江省', '杭州', '宁波', '温州', '嘉兴', '湖州', '绍兴', '金华', '衢州', '舟山', '台州', '丽水'],
    ['安徽省', '合肥', '芜湖', '蚌埠', '淮南', '马鞍山', '淮北', '铜陵', '安庆', '黄山', '滁州', '阜阳', '宿州', '巢湖', '六安', '亳州', '池州', '宣城'],
    ['福建省', '福州', '厦门', '莆田', '三明', '泉州', '漳州', '南平', '龙岩', '宁德'],
    ['江西省', '南昌', '景德镇', '萍乡', '九江', '新余', '鹰潭', '赣州', '吉安', '宜春', '抚州', '上饶'],
    ['山东省', '济南', '青岛', '淄博', '枣庄', '东营', '烟台', '潍坊', '威海', '济宁', '泰安', '日照', '莱芜', '临沂', '德州', '聊城', '滨州', '菏泽'],
    //中南地区
    ['河南省', '郑州', '开封', '洛阳', '平顶山', '焦作', '鹤壁', '新乡', '安阳', '濮阳', '许昌', '漯河', '三门峡', '南阳', '商丘', '信阳', '周口', '驻马店'],
    ['湖北省', '武汉', '黄石', '襄樊', '十堰', '荆州', '宜昌', '荆门', '鄂州', '孝感', '咸宁', '随州', '恩施'],
    ['湖南省', '长沙', '株洲', '湘潭', '衡阳', '邵阳', '岳阳', '常德', '张家界', '益阳', '郴州', '永州', '怀化', '娄底', '湘西'],
    ['广东省', '广州', '深圳', '珠海', '汕头', '韶关', '佛山', '江门', '湛江', '茂名', '肇庆', '惠州', '梅州', '汕尾', '河源', '阳江', '清远', '东莞', '中山', '潮州', '揭阳', '云浮'],
    ['广西自治区', '南宁', '柳州', '桂林', '梧州', '北海', '防城港', '钦州', '贵港', '玉林', '百色', '贺州', '河池', '来宾', '崇左'],
    ['海南省', '海口', '三亚'],
    //西南地区
    ['四川省', '成都', '自贡', '攀枝花', '泸州', '德阳', '绵阳', '广元', '遂宁', '内江', '乐山', '南充', '宜宾', '广安', '达州', '眉山', '雅安', '巴中', '资阳', "阿坝", "甘孜", "凉山"],
    ['贵州省', '贵阳', "六盘水", "遵义", "安顺", "铜仁", "毕节", "黔西南", "黔东南", "黔南"],
    ['云南省', '昆明', '曲靖', '玉溪', "保山", "昭通", "丽江", "普洱", "临沧", "文山", "红河", "西双版纳", "楚雄", "大理", "德宏", "怒江", "迪庆"],
    ['西藏自治区', "拉萨", "昌都", "山南", "日喀则", "那曲", "阿里", "林芝"],
    //西北地区
    ['陕西省', '西安', '铜川', '宝鸡', '咸阳', '渭南', '延安', '汉中', '榆林', '安康', '商洛'],
    ['甘肃省', "兰州", "嘉峪关", "金昌", "白银", "天水", "武威", "张掖", "平凉", "酒泉", "庆阳", "定西", "陇南", "临夏", "甘南"],
    ['青海省', "西宁", "海东", "海北", "黄南", "海南", "果洛", "玉树", "海西"],
    ['宁夏自治区', '银川', "石嘴山", "吴忠", "固原", "中卫"],
    ['新疆自治区', '乌鲁木齐', "克拉玛依", "吐鲁番", "哈密", "和田", "阿克苏", "喀什", "克孜勒苏柯尔克孜", "巴音郭楞蒙古", "昌吉", "博尔塔拉蒙古", "伊犁哈萨克", "塔城", "阿勒泰"],
    //港澳台
    ['香港特别行政区'],
    ['澳门特别行政区'],
    ['台湾省', "台北", "高雄", "基隆", "台中", "台南", "新竹", "嘉义"]
];

function BindProvince() {
    var opt0 = "省份";
    var ProvinceCount = china.length;
    var ddlProvince = document.getElementById("ddlProvince");
    ddlProvince.innerHTML = "";
    ddlProvince.options[0] = new Option(opt0, "");
    for (var i = 0; i < ProvinceCount; i++) {
        ddlProvince.options[i + 1] = new Option(china[i][0], china[i][0]);
    }
}

function BindCity(City) {
    var opt0 = "省份";
    var ProvinceCount = china.length;
    var ddlProvince = document.getElementById("ddlProvince");
    ddlProvince.innerHTML = "";
    ddlProvince.options[0] = new Option(opt0, "");

    var opt0City = "城市";
    var ddlCity = document.getElementById("ddlCity");
    ddlCity.innerHTML = "";
    ddlCity.options[0] = new Option(opt0City, "");

    var flag = false;
    var chose = true;
    var selectProvinceIndex = 0;
    for (var i = 0; i < ProvinceCount; i++) {
        if (!flag) {
            var cityCount = china[i].length;
            for (var j = 1; j < cityCount; j++) {
                if (china[i][j] == City)
                {
                    flag = true;
                    selectProvinceIndex = i;
                    break;
                }
            }
        }
        ddlProvince.options[i + 1] = new Option(china[i][0], china[i][0]);
        if (flag && chose) {
            ddlProvince.options[i + 1].selected = true;
            chose = false;
        }
    }
    var cityCount = china[selectProvinceIndex].length;
    for (var i = 0; i < cityCount; i++) {
        if (cityCount == 1 && i == 0) {
            ddlCity.options[i + 1] = new Option(china[selectProvinceIndex][i], china[selectProvinceIndex][i]);
            i = 1;
        }
        else if (cityCount > 1 && i == 0) {
            i = 1;
            ddlCity.options[i] = new Option(china[selectProvinceIndex][i], china[selectProvinceIndex][i]);
        }
        else {
            ddlCity.options[i] = new Option(china[selectProvinceIndex][i], china[selectProvinceIndex][i]);
        }
        if (china[selectProvinceIndex][i] == City) {
            ddlCity.options[i].selected = true;
        }
    }

}

function selectMoreCity(sbj) {
    var opt0 = "城市";
    if (sbj.selectedIndex == 0) {
        var ddlCity = document.getElementById("ddlCity");
        ddlCity.innerHTML = "";
        ddlCity.options[0] = new Option(opt0, "");
        return;
    }
    var selectProvince = sbj.options[sbj.selectedIndex].value;
    var ProvinceCount = china.length;
    for (var i = 0; i < ProvinceCount; i++) {
        if (china[i][0] == selectProvince) {
            var cityCount = china[i].length;
            var ddlCity = document.getElementById("ddlCity");
            ddlCity.innerHTML = "";
            ddlCity.options[0] = new Option(opt0, "");
            for (var j = 0; j < cityCount; j++) {
                if (cityCount == 1 && j == 0) {
                    ddlCity.options[j + 1] = new Option(china[i][j], china[i][j]);
                    j = 1;
                }
                else if (cityCount > 1 && j == 0) {
                    j = 1;
                    ddlCity.options[j] = new Option(china[i][j], china[i][j]);
                }
                else {
                    ddlCity.options[j] = new Option(china[i][j], china[i][j]);
                }
                if (j == 1) {
                    ddlCity.options[1].selected = true;
                }
            }
            break;
        }
    }
}